public override bool Match(int x, int y, TileResultCollector <TRenderTile, TContext> resultCollector)
{
coordinates = GridNavigator.NavigateCardinalNeighbours(new MapCoordinate(x, y), coordinates);
var n = Matches(coordinates[(int)Direction.Up]);
var e = Matches(coordinates[(int)Direction.Right]);
var s = Matches(coordinates[(int)Direction.Down]);
var w = Matches(coordinates[(int)Direction.Left]);
bool result = false;
if (n)
{
if (e)
{
if (tileExists[1])
{
resultCollector(SpritePosition.Whole, tiles[1], ContextProvider(x, y));
}
result = true;
}
if (w)
{
if (tileExists[0])
{
resultCollector(SpritePosition.Whole, tiles[0], ContextProvider(x, y));
}
result = true;
}
}
if (s)
{
if (e)
{
if (tileExists[2])
{
resultCollector(SpritePosition.Whole, tiles[2], ContextProvider(x, y));
}
result = true;
}
if (w)
{
if (tileExists[3])
{
resultCollector(SpritePosition.Whole, tiles[3], ContextProvider(x, y));
}
result = true;
}
}
return(result);
}
public override bool Match(int x, int y, TileResultCollector <TRenderTile, TContext> resultCollector)
{
// The current tile is not a land tile. If it is an ocean tile, we can test
// whether one of the cardinal neighbours is a river that flows into the
// ocean.
if (!selfMatcher(x, y))
{
return(false);
}
coordinates = GridNavigator.NavigateCardinalNeighbours(new MapCoordinate(x, y), coordinates);
if (Matches(coordinates[CardinalIndex.North.AsInt()]))
{
if (northTileExists)
{
resultCollector(SpritePosition.Whole, northTile, ContextProvider(x, y));
}
return(true);
}
if (Matches(coordinates[CardinalIndex.East.AsInt()]))
{
if (eastTileExists)
{
resultCollector(SpritePosition.Whole, eastTile, ContextProvider(x, y));
}
return(true);
}
if (Matches(coordinates[CardinalIndex.South.AsInt()]))
{
if (southTileExists)
{
resultCollector(SpritePosition.Whole, southTile, ContextProvider(x, y));
}
return(true);
}
if (Matches(coordinates[CardinalIndex.West.AsInt()]))
{
if (westTileExists)
{
resultCollector(SpritePosition.Whole, westTile, ContextProvider(x, y));
}
return(true);
}
return(false);
}
public override bool Match(int x, int y, TileResultCollector <TRenderTile, TContext> resultCollector)
{
if (!selfMatcher(x, y))
{
return(false);
}
Coordinates = GridNavigator.NavigateCardinalNeighbours(new MapCoordinate(x, y), Coordinates);
int idx = 0;
idx += MatchAsFlag(Coordinates[CardinalIndex.North.AsInt()]);
idx += MatchAsFlag(Coordinates[CardinalIndex.East.AsInt()]) << 1;
idx += MatchAsFlag(Coordinates[CardinalIndex.South.AsInt()]) << 2;
idx += MatchAsFlag(Coordinates[CardinalIndex.West.AsInt()]) << 3;
if (tagExists[idx])
{
resultCollector(SpritePosition.Whole, tags[idx], ContextProvider(x, y));
return(true);
}
return(false);
}